Bladestorm: The Hundred Years' War Unlockables (Xbox 360)

In the early half of the 14th century a quarrel with England over the succession to the French throne escalated into what history would call the Hundred Years' War. This summer, BLADESTORM: THE HUNDRED YEARS' WAR will bring to life the intensity and drama of a war-torn Medieval Europe with a cast of legendary characters including Joan of Arc and Edward the Black Prince.
Utilizing a new game engine attainable only through the power of next generation hardware, BLADESTORM: THE HUNDRED YEARS' WAR will recreate the fierce clashes between the armies of England and France at an unprecedented scale, where every soldier reacts individually to their immediate surroundings. Players will assume the role of a mercenary leader and strategically command, in real-time, a wide range of troops including infantry, archers, cavalry, and cannoniers.

Unlockables

Achievements
Complete each of the following achievements below to get the allotted gamerscore.

Book of Axes (50) - Occasionally there are Books in the chests dropped during battle.

Book of Bows (50) - After creating your character, be sure to save your play data.

Book of Camels (50) - Occasionally there are Books in the chests dropped during battle.

Book of Chariots (50) - Occasionally there are Books in the chests dropped during battle.

Book of Clubs (50) - Occasionally there are Books in the chests dropped during battle.

Book of Elephants (50) - Occasionally there are Books in the chests dropped during battle.

Book of Halberds (50) - Occasionally there are Books in the chests dropped during battle.

Book of Horsebows (50) - Occasionally there are Books in the chests dropped during battle.

Book of Horses (50) - After creating your character, be sure to save your play data.

Book of Knives (50) - Occasionally there are Books in the chests dropped during battle.

Book of Long Spears (50) - Occasionally there are Books in the chests dropped during battle.

Book of Magic (50) - Occasionally there are Books in the chests dropped during battle.

Book of Rapiers (50) - Occasionally there are Books in the chests dropped during battle.

Book of Spears (50) - Occasionally there are Books in the chests dropped during battle.

Book of Swords (50) - After creating your character, be sure to save your play data.

Cleared Story (150) - After viewing the ending, be sure to save your play data.

Probably the best mass combat scenes I've seen: